In contrast to the damaging effects of high doses, low dose radiation (UV, gamma) has been reported to provoke constructive changes in plants. However, the mechanisms by which plants recognize and respond to low dose radiation are not understood. We have shown recently that polygalacturonic acid, cell wall polysaccharide, converts the highly reactive product of radiation - hydroxyl radical into superoxide which may be further dismutated to hydrogen peroxide. Superoxide has been proposed to act as a signaling molecule, while hydrogen peroxide is known to be the key species in redox signaling cascades which are involved in the regulation of various physiological processes. Hence we propose that polygalacturonic acid may operate as radiation-signaling convertor. The outlined principles of radiation-sensing could also be valid for mammalian cells, with some other molecules mediating the conversion.
TY - JOUR
AU - Bogdanović Pristov, Jelena
AU - Spasić, Mihajlo
AU - Spasojević, Ivan
PY - 2013
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/644
AB - In contrast to the damaging effects of high doses, low dose radiation (UV, gamma) has been reported to provoke constructive changes in plants. However, the mechanisms by which plants recognize and respond to low dose radiation are not understood. We have shown recently that polygalacturonic acid, cell wall polysaccharide, converts the highly reactive product of radiation - hydroxyl radical into superoxide which may be further dismutated to hydrogen peroxide. Superoxide has been proposed to act as a signaling molecule, while hydrogen peroxide is known to be the key species in redox signaling cascades which are involved in the regulation of various physiological processes. Hence we propose that polygalacturonic acid may operate as radiation-signaling convertor. The outlined principles of radiation-sensing could also be valid for mammalian cells, with some other molecules mediating the conversion.
T2 - Plant Signaling and Behavior
T1 - Converting low dose radiation to redox signaling
IS - 2
VL - 8
DO - 10.4161/psb.23151
ER -
@article{
author = "Bogdanović Pristov, Jelena and Spasić, Mihajlo and Spasojević, Ivan",
year = "2013",
abstract = "In contrast to the damaging effects of high doses, low dose radiation (UV, gamma) has been reported to provoke constructive changes in plants. However, the mechanisms by which plants recognize and respond to low dose radiation are not understood. We have shown recently that polygalacturonic acid, cell wall polysaccharide, converts the highly reactive product of radiation - hydroxyl radical into superoxide which may be further dismutated to hydrogen peroxide. Superoxide has been proposed to act as a signaling molecule, while hydrogen peroxide is known to be the key species in redox signaling cascades which are involved in the regulation of various physiological processes. Hence we propose that polygalacturonic acid may operate as radiation-signaling convertor. The outlined principles of radiation-sensing could also be valid for mammalian cells, with some other molecules mediating the conversion.",
journal = "Plant Signaling and Behavior",
title = "Converting low dose radiation to redox signaling",
number = "2",
volume = "8",
doi = "10.4161/psb.23151"
}
Bogdanović Pristov, J., Spasić, M.,& Spasojević, I.. (2013). Converting low dose radiation to redox signaling. in Plant Signaling and Behavior, 8(2).
https://doi.org/10.4161/psb.23151
Bogdanović Pristov J, Spasić M, Spasojević I. Converting low dose radiation to redox signaling. in Plant Signaling and Behavior. 2013;8(2).
doi:10.4161/psb.23151 .
Bogdanović Pristov, Jelena, Spasić, Mihajlo, Spasojević, Ivan, "Converting low dose radiation to redox signaling" in Plant Signaling and Behavior, 8, no. 2 (2013),
https://doi.org/10.4161/psb.23151 . .
